4. the turning point of the second world war->; The Soviet Union defended Stalingrad.

Hungary, Romania and Bulgaria support Germany

Yugoslavia, which supported Germany, was overthrown by pro-British forces, and Greece also supported Britain->; 1941invaded the balkans on April 6.

April 12 Belgrade, the capital of Yugoslavia, fell.

Greece also fell-> Start the Barbarossa project.

Comparison of strength between the two sides:

? There are 4 million Germans, 3,000 fighters and about 6,000 tanks (excellent and advanced).

The western part of the Soviet Union has a population of 2 million, millions of reserve troops and more than 20,000 tanks (obsolete and backward).

Barbarossa Plan: The northern army swept the Baltic countries, attacked Leningrad, the central army invaded Poland, then invaded Moscow, and the southern army invaded Ukraine.

194 1 Barbarossa is scheduled to be implemented at 3: 00 am on June 22nd.

At dawn, the Soviet airport was attacked and the ground troops began to attack.

In the early stage, the Soviet Union did not cooperate properly and was beaten.

1941On June 29th, the German Conscience Armored Forces held fast to Minsk and captured 300,000 Soviet troops.

Britain and the Soviet Union formed an alliance and signed a mutual assistance treaty in Moscow, and Britain gave a little material.

1941from the end of June to July, the Germans conquered a large territory of the Soviet union with blitzkrieg.

1941July, Smolensk was captured by pincer tactics, slightly trimmed, and waited for the follow-up troops to attack again.

194 1 July, the southern army is still 80 kilometers away from Kiev. Hitler asked guderian to transfer from Smolensk to support the southern army and conquer Kiev.

194 1 year1October, more and more Soviet troops were surrounded.

Stalin decided to defend Moscow and dig trenches.

Although the southern army reached the Black Sea, it began to rain and its armor got stuck in the mud.

Then it was winter, and the Germans had no cotton-padded clothes.

194 1 65438+on February 4th, the German advance troops were 30 kilometers away from Moscow's Red Square.

Heavy snow cooling, frostbitten German soldiers and frozen guns->; The Germans will attack again next spring.

194 1 year 1 1 month received news from Soviet intelligence personnel in Japan that Japan had no plans to attack Siberia-> 1941In early February, 500,000 Siberian troops were assembled to support Moscow.

19411219, Hitler dismissed walther von brauchitsch as commander-in-chief of the army and appointed himself commander-in-chief, heinz wilhelm guderian and 35 other senior officers.

194165438+On February 7th, Japan attacked the United States, and Hitler declared war on the United States.

Hitler decided to temporarily stop attacking Moscow and turn to the south. Army A seized the oil field from the Caucasus, and Army B formed a flanking force->; 200,000 Soviet troops were captured and 70,000 people were killed.

On June 28th, 1942, Army B arrived at the Don River and launched an attack.

On July 9 1942, Army A attacked near Rostov. From this moment on, Hitler made a series of strategic mistakes: ① It was of no strategic significance to order an attack on Stalingrad.

Then, dissatisfied with the marching speed in the Caucasus, most armored troops on the Don River were transferred to Rostov.

Then the panzer corps was moved to the north.

The coastal oil fields have not been won, and the strategic objectives have changed-> 1942 In late August, the Germans approached Stalingrad.

The Stalingrad soldiers and civilians used Hitler's two weeks to send the B army to the south to step up preparations.

After the Battle of Stalingrad began, the Soviet Union secretly transported1100,000 soldiers and a large number of weapons to the front.

1942165438+1October 23rd, Soviet troops defended the German Sixth Army, and Hitler ordered paulus, the supreme commander of the Sixth Army, to hold his ground and not retreat.

1942 12 12 In order to rescue paulus, Erich von Manstein launched a winter storm in an attempt to break out of the encirclement by taking advantage of German armor.

It went well at first, but then the Soviet Union increased its assistance.

Marshal zhukov of the Soviet union launched-> the next phase of strategy; Launch a large-scale attack on the German armored forces involved in the aid

The rescue failed, and so did Germany's plan to drop supplies.

200,000 Germans were besieged.

1943 65438+1October 3 1, paulus was forced to surrender.

1942 65438+At the beginning of February, the Soviet army was only 200 miles away from Rostov, and it might be surrounded->; The Germans were forced to retreat.

1943 65438+1October 13 Soviet troops launched a counterattack, with a front of 800 Li, and recovered Kursk and nearby Kharkov at the end of February.

Battle result: 1 million Germans died, and a large number of tanks and other weapons were lost.

The reserve forces of the Soviet Union are still sufficient, and they have also received assistance from Britain and the United States, which has improved the efficiency of weapons production.

The performance of Soviet T-34 tanks is good, and Katyusha artillery is also strong->; Germans developed tiger tanks and leopard tanks for this purpose.

Hitler thought of launching a counterattack in the summer of 1943, and planned to encircle the Soviet Union in Kursk.

Marshal zhukov got this information from the intelligence personnel. The Germans are going to attack in Kursk. Soviet troops dug anti-tank trenches in advance, laid mines, installed barbed wire and other fortifications, and transferred troops and tanks from the frontline defense areas.

1July 5, 943, before the German army launched an attack, it was attacked by heavy artillery fire from the Soviet army.

Battle result: The Germans lost 50,000 men and more than 700 tanks->; After that, the Germans never launched a large-scale attack on the Eastern Front.

(1) layman command expert don't lose.

(2) For a country with a vast territory, strategic depth is conducive to counter-offensive.

(3) In the war, we must ensure that the military facilities of the other side are destroyed, otherwise the airport will be repaired and the effective forces will continue to resist.

(4) Fight an industrial power, and it will strangle you before it is destroyed.

⑤ Now that there are satellites, will weather forecast information be integrated in the war?